Answer:
Although I am still, in families I run. I continue to live on in a living one. As one continues to draw breath, I will not rust. However, when one stops drawing breath, I will become mere dust. What am I?
So cold damp and dark I am. To stay you would refrain yet those who occupy me do never complain.
Use me if you really want to see inside someone
As I went over London Bridge I met my sister Jenny; I broke her neck and drank her blood and left her standing empty.
Forward I am heavy backward I am not. What am I?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?